RESULTS
A total of 41 studies were identified after duplicates were removed, and 32 studies were excluded based on the title and the abstract (11 were not performed for acute asthma, 13 did not use systemic corticosteroids in both groups, 5 did not specify the data for children, and 2 RCTs did not include intervention drugs). We performed a full text review of nine articles, 20-28 all of which met our inclusion criteria and were counted in the quantitative and qualitative analyses (Figure 1).